I have been wanting to ask for a long time. I saw some company recruitment posts that require proficiency in using PS, not for design positions but for clerkships. What specifically do you use PS for?

PS is not just for design. Sometimes the company also needs to scan or change redundant words or pictures on some documents, which requires the use of PS.

Moreover, many documents now require electronic files. To upload a photo, you also need to use PS.

I can think of these for now. In short, PS can not only make photos and posters!